908 Devices Inc. — Director's Dealing 2021

Apr 30, 2021

SEC Form 3/A — Form 3/A

Issuer: 908 Devices Inc. (MASS)
CIK: 0001555279
Period of Report: 2020-12-17

Reporting Person: Knopp Kevin J. (Director, President and CEO)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, par value $0.001	758667	Direct
Common Stock, par value $0.001	505777	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Option (option to buy)	$1.75	2027-01-01	Common Stock, par value $0.001 (122918)		Direct
Series A Preferred Stock	$		Common Stock, par value $0.001 (37845)		Direct
Series A Preferred Stock	$		Common Stock, par value $0.001 (25229)		Indirect
Series B Preferred Stock	$		Common Stock, par value $0.001 (12688)		Direct
Series B Preferred Stock	$		Common Stock, par value $0.001 (8459)		Indirect
Series D Preferred Stock	$		Common Stock, par value $0.001 (2638)		Direct
Series D Preferred Stock	$		Common Stock, par value $0.001 (1758)		Indirect

Footnotes

F1: The original Form 3, filed December 17, 2020, is being amended by this Form 3 amendment to correct an administrative error related to the nature of the beneficial ownership of the shares held by the reporting person. Due to an administrative error, those shares were reported as being held directly by the reporting person, instead of held indirectly through the reporting person's trust, for which the reporting person may be deemed to be the beneficial owner. This Form 3 corrects such error by indicating that such shares are held indirectly instead of directly.

F2: The shares are owned directly by The Kevin J. Knopp Irrevocable Trust of 2018. The reporting person's brother-in-law is the trustee of The Kevin J. Knopp Irrevocable Trust of 2018 and has sole voting and dispositive control with respect to all securities held by such trust. The reporting person may be deemed to be the beneficial owner of the securities held by The Kevin J. Knopp Irrevocable Trust of 2018.

F3: The original Form 3, filed December 17, 2020, is being amended by this Form 3 amendment to correct the expiration date of these stock options. Due to an administrative error, the expiration date was listed as 6/22/2027 instead of 1/1/2027.

F4: The shares underlying the option become vested and exercisable in substantially equal monthly installments over the 48 months following January 1, 2017, subject to the reporting person's continued service through the applicable vesting date.

F5: Each share of Series A Preferred Stock, Series B Preferred Stock and Series D Preferred Stock (collectively, the "Preferred Shares") is convertible into shares of the Issuer's Common Stock at a 1:0.61459 ratio at any time at the holder's election, and automatically upon the closing of the Issuer's initial public offering ("IPO"), without payment of additional consideration. The Preferred Shares have no expiration date.